VALVE SPRING SET XR / XL250, KIBBLEWHITE 30-30077 RACING, Honda XR 200R RFVC 1984-1985 Honda XR 250L 1991-1996 Honda XL/XR 250 RFVC 1984-1995

Spring Kit, Lightweight Racing, 0.355″ Lift, Various Honda® Applications

Honda XR 200R RFVC 1984-1985
Honda XR 250L 1991-1996
Honda XL/XR 250 RFVC 1984-1995

HIGH LIFT 0.355 INC. Lightweight Racing Valve Spring Kits.

Kibblewhite # 30-30077

Description Intake – 0.355 Valve Lift OK 55# Seat Pressure / 150 lb. at .355 lift
Exhaust -0.355 Valve Lift OK 55# Seat Pressure / 150 lb. at .355 lift

Since 1939, KPMI® has taken great pride in our ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today’s high revving 4-stroke engines.

The challenge to engineer a valvetrain that would outperform OEM systems, that in some cases included titanium components, was not an easy one. This task would require the concentrated efforts of every member of KPMI®’s design team. It was apparent early on that an OEM style spring with a bit more pressure was not going to be the complete answer for these engines. Working together as a team enabled KPMI® to evolve with a “unified system” approach. In fact, these innovative high performance lightweight valve spring kits, would not only outperform factory parts, but outlive them as well.

Each KPMI® spring kit is designed for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm, just to name a few!

Today KPMI® proudly offers complete high performance lightweight valve spring kits for a host of applications.

Part No. 65-726 (oro2u.com)